Ethyl 3-(difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-(bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate
2-(Difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-3-carbonyl chloride
6-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-carbonyl chloride